It uses industrial strength hard alloy drill tips, which endow the drill with excellent wear resistance. Compared to ordinary drill bits, it can withstand more durable and high-intensity operations, always maintaining sharpness and making drilling easier. Whether it is fragile materials such as glass and ceramics, hard materials such as cement and bricks, or wood and hard plastics, it can easily penetrate and meet various drilling needs. The set includes 12 drill bits, ranging from 1/8 in. to 1/2 in. with a total of 12 different sizes. According to actual needs, drilling can be done gradually from the smallest size until the desired aperture is reached, providing precise adaptation for different drilling tasks. Moreover, it is suitable for most universal drill bits, electric drills, hand drills, and bench drills, with extremely strong compatibility. Whether operated by professionals or novice DIY enthusiasts, it can be easily mastered. The flat handle design makes the drill easy to insert and can be firmly fixed, ensuring stable operation without shaking, greatly improving the accuracy of drilling. Whether it's drilling fastener holes for bathroom tiles or drilling holes for wall mirrors and flowerpot ceramics, this set of drill bits can perform tasks excellently, reducing the risk of breakthrough.